Historical tsunamis · Sep 23, 2024, 11:14 PM UTC
2024 Izu Islands, Japan tsunami
Japan
The tsunami of Sep 23, 2024, 11:14 PM UTC originated near Izu Islands, Japan (Japan).
Key facts
- Date
- Sep 23, 2024, 11:14 PM UTC
- Cause
- Earthquake
- Magnitude
- M5.6
- Depth
- 11 km
- Maximum documented water height
- 0.50 m
- Observation records
- 12
- Countries affected
- 1
It was triggered by a magnitude 5.6 earthquake at a depth of 11 km.
The highest documented water height was 0.50 m.
12 observation sites in 1 countries are recorded.
Map of observation sites
12Each dot is a documented observation site; colour and size show the observed water height. The triangle marks the source.
Tsunami arrival times
Documented arrival times from the NOAA/NCEI database, showing the earliest recorded location per country. Coverage is incomplete: a country without an entry was not necessarily spared.
- 0:00 hEarthquake (origin) · Sep 23, 2024, 11:14 PM UTC
- 0:46 hJapan · Minami-Izu · 0.08 m
6 places with a documented arrival time
Observations by country
| Country | Observation records | Maximum documented water height | Deaths | Earliest arrival |
|---|---|---|---|---|
| Japan | 12 | 0.70 m Yaene, Hachijo Island | — | 0:46 h |
Highest documented water heights
12 / 12Individual documented observations for this event. Heights come from different measurement types and sources; not every location has a measured height.
| Location / station | Observed height | Distance from source | Country |
|---|---|---|---|
| Yaene, Hachijo Island · Tokyo | 0.70 m | 175 km | Japan |
| Kozushima · Izu-Oshima, Tokyo | 0.20 m | 309 km | Japan |
| Ako · Tokyo | 0.15 m | 285 km | Japan |
| Tsubota · Tokyo | 0.14 m | 282 km | Japan |
| Nakanoshima (Nakano Island) · Kagoshima | 0.13 m | 996 km | Japan |
| Okada · Izu-Oshima, Tokyo | 0.12 m | 365 km | Japan |
| Mera · Chiba | 0.09 m | 375 km | Japan |
| Minami-Izu · Shizuoka | 0.08 m | 358 km | Japan |
| Tosa-Shimizu · Kochi | 0.08 m | 684 km | Japan |
| Kaminato, Hachijo Island · Tokyo | 0.07 m | 178 km | Japan |
| Kominato, Amami Island · Kagoshima | 0.05 m | 1,077 km | Japan |
| Murotomisaki · Kochi | 0.04 m | 587 km | Japan |
More tsunamis
Source: NOAA National Centers for Environmental Information (NCEI), Global Historical Tsunami Database. Confirmed events only. Deaths and damage are database estimates; older records are incomplete. Water heights come from different types of observation.